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Merck
CN

1374500

USP

Maleic acid

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

cis-Butenedioic acid, Toxilic acid

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About This Item

Linear Formula:
HO2CCH=CHCO2H
CAS Number:
110-16-7
Molecular Weight:
116.07
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329750311
MDL number:
MFCD00063177
Beilstein/REAXYS Number:
605762

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InChI

1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-

SMILES string

OC(=O)\C=C/C(O)=O

InChI key

VZCYOOQTPOCHFL-UPHRSURJSA-N

grade

pharmaceutical primary standard

API family

maleic acid

form

crystalline powder

manufacturer/tradename

USP

mp

130-135 °C (lit.)

solubility

water: 788 g/L at 20 °C, 1-propanol: freely soluble, alcohol: freely soluble, chloroform: insoluble, methanol: freely soluble

density

1.59 g/mL at 25 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3

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